<template>
	<view class="container">
		<view class="carousel" v-if="product.imgList!=null&&product.imgList.length>0">
			<swiper indicator-dots circular=true duration="400">
				<swiper-item class="swiper-item" v-for="(item,index) in product.imgList" :key="index">
					<view class="image-wrapper">
						<image
							:src="imgPath(item.url)" 
							class="loaded" 
							mode="aspectFill"
						></image>
					</view>
				</swiper-item>
			</swiper>
		</view>
		<view class="carousel" v-if="product.imgList==null||product.imgList.length<=0">
			<swiper indicator-dots circular=true duration="400">
				<swiper-item class="swiper-item">
					<view class="image-wrapper">
						<image
							:src="imgPath(product.img)" 
							class="loaded" 
							mode="aspectFill"
						></image>
					</view>
				</swiper-item>
			</swiper>
		</view>
		
		<view class="introduce-section">
			<text class="title">{{product.name}}</text>
			<view class="price-box">
				<text class="price-tip">¥</text>
				<text class="price">{{product.price}}</text>
				<!-- <text class="m-price">¥488</text>
				<text class="coupon-tip">7折</text> -->
			</view>
			<view class="bot-row">
				<!-- <text>销量:  {{product.sale}}</text> -->
				<text>库存: {{product.num}}</text>
				<text>浏览量:  {{product.count.views}}</text>
			</view>
		</view>
		
		<!--  分享 -->
		<!-- <view class="share-section" @click="share">
			<view class="share-icon">
				<text class="yticon icon-xingxing"></text>
				 返
			</view>
			<text class="tit">该商品分享可领49减10红包</text>
			<text class="yticon icon-bangzhu1"></text>
			<view class="share-btn">
				立即分享
				<text class="yticon icon-you"></text>
			</view>
			
		</view> -->
		
		<view class="c-list">
			<view class="c-row b-b" @click="toggleSpec" v-if="product.productAttrList!=null&&product.productAttrList.length>0">
				<text class="tit">规格类型</text>
				<view class="con">
					<text class="selected-text" v-for="(sItem, sIndex) in specSelected" :key="sIndex">
						{{sItem}}
					</text>
				</view>
				<text class="yticon icon-you"></text>
			</view>
			<!-- <view class="c-row b-b">
				<text class="tit">优惠券</text>
				<text class="con t-r red">领取优惠券</text>
				<text class="yticon icon-you"></text>
			</view> -->
			<!-- <view class="c-row b-b">
				<text class="tit">促销活动</text>
				<view class="con-list">
					<text>新人首单送20元无门槛代金券</text>
					<text>订单满50减10</text>
					<text>订单满100减30</text>
					<text>单笔购买满两件免邮费</text>
				</view>
			</view> -->
			<!-- <view class="c-row b-b">
				<text class="tit">服务</text>
				<view class="bz-list con">
					<text>7天无理由退换货 ·</text>
					<text>假一赔十 ·</text>
				</view>
			</view> -->
		</view>
		
		<!-- 评价 -->
		<!-- <view class="eva-section">
			<view class="e-header">
				<text class="tit">评价</text>
				<text>(86)</text>
				<text class="tip">好评率 100%</text>
				<text class="yticon icon-you"></text>
			</view> 
			<view class="eva-box">
				<image class="portrait" src="http://img3.imgtn.bdimg.com/it/u=1150341365,1327279810&fm=26&gp=0.jpg" mode="aspectFill"></image>
				<view class="right">
					<text class="name">Leo yo</text>
					<text class="con">商品收到了，79元两件，质量不错，试了一下有点瘦，但是加个外罩很漂亮，我很喜欢</text>
					<view class="bot">
						<text class="attr">购买类型：XL 红色</text>
						<text class="time">2019-04-01 19:21</text>
					</view>
				</view>
			</view>
		</view> -->
		
		<view class="detail-desc">
			<view class="d-header">
				<text>图文详情</text>
			</view>
			<rich-text :nodes="product.content"></rich-text>
		</view>
		
		<!-- 底部操作菜单 -->
		<view class="page-bottom">
			<navigator url="/pages/index/index" open-type="switchTab" class="p-b-btn">
				<text class="yticon icon-xiatubiao--copy"></text>
				<text>首页</text>
			</navigator>
			<navigator url="/pages/cart/cart" open-type="switchTab" class="p-b-btn">
				<text class="yticon icon-gouwuche"></text>
				<text>购物车</text>
			</navigator>
			<view class="p-b-btn" :class="{active: product.collected}" @click="toCollect">
				<text class="yticon icon-shoucang"></text>
				<text>收藏</text>
			</view>
			
			<view class="action-btn-group" v-if="product.num>0">
				<button type="primary" class=" action-btn no-border buy-now-btn" @click="buy">立即下单</button>
				<button type="primary" class=" action-btn no-border add-cart-btn" @click="cart">加入购物车</button>
			</view>
			<view class="action-btn-group" v-if="product.num<=0">
				<button type="primary" class=" action-btn no-border buy-now-btn" >缺货</button>
 			</view>
		</view>
		
		
		<!-- 规格-模态层弹窗 -->
		<view 
			class="popup spec" 
			:class="specClass"
			@touchmove.stop.prevent="stopPrevent"
			@click="toggleSpec"
		>
			<!-- 遮罩层 -->
			<view class="mask"></view>
			<view class="layer attr-content" @click.stop="stopPrevent">
				<view class="a-t" v-if="specInfo!=null&&specInfo.id>0">
					<image :src="imgPath(product.img)" ></image>
					<view class="right">
						<text class="price">¥{{specInfo.price}}</text>
						<text class="stock">库存：{{specInfo.stock}}件</text>
						<view class="selected">
							已选：
							<text class="selected-text" v-for="(sItem, sIndex) in specSelected" :key="sIndex">
								{{sItem}}
							</text>
						</view>
					</view>
				</view>
				<view v-for="(item,index) in product.attributesList" :key="index" class="attr-list">
					<text>{{item.name}}</text>
					<view class="item-list">
						<text 
							v-for="(childItem, childIndex) in item.attrs"  
							:key="childIndex" class="tit"
							:class="{selected: (specSelectedMap[item.name]==childItem)}"
							@click="selectSpec(childIndex, childItem,item)"
						>
							{{childItem}}
						</text>
					</view>
				</view>
				<view class="selectCount">
					<view class="row"> 
						<view class="left">数量</view>
						<view class="right"><uni-number-box class="count" :min="1" :value="num" :max="5" @eventChange="numberChange"></uni-number-box></view>
					</view>
				</view>
				<button class="btn" @click="buy" v-if="buyClass=='buy'">立即下单</button>
				<button class="btn" @click="cart" v-if="buyClass!='buy'">完成</button>
			</view>
		</view>
		<!-- 分享 -->
		<share 
			ref="share" 
			:contentHeight="580"
			:shareList="shareList"
		></share>
	</view>
</template>

<script>
	import share from '@/components/share';
	import uniNumberBox from '@/components/uni-number-box';
	export default{
		components: {
			share,uniNumberBox
		},
		data() {
			return {
				buyClass: 'none',//购买的时候选择规格和数量
				specClass: 'none',
				specSelected:[], 				
				specSelectedMap:{}, 				
 				product:{//产品详情
					imgList:[],
					content:""
				},
				specInfo:{//规格参数
					
				},
				shareList: [], 
				num:1,
			};
		},
		async onLoad(options){ 
			//接收传值,id里面放的是标题，因为测试数据并没写id 
			let id = options.id;
			if(id){//加载数据
 				let _this=this;
				this.sendRequest({
					url : "get_product",
					data : {id:id},
					method : "get",
 					success:function (res) {
						if(res.data){
							_this.product=res.data;
							if(_this.product.attributesList){ 
								_this.product.attributesList.forEach(item=>{
  									for(let it of item.attrs){
 										// _this.specSelectedMap[item.name]="";
 										_this.specSelectedMap[item.name]=it;
										_this.specSelected.push(it);
										break; //forEach不能使用break
									}
								});
								//给多规格的默认选中值
								_this.product.productAttrList.forEach(item=>{
									if(item.attributes==JSON.stringify(_this.specSelected)){
										_this.specInfo=item;
									}
								})
								//调用接口访问量  
								_this.countView();
							}
 						}
					}
				}); 
			}  
		},
		methods:{
			imgPath:function(path){
				if(path==''||path==null||path=='null'){
					return "/static/errorImage.jpg"				 
				}else if (path!=''&&path.indexOf('http')>=0) {
					return path;				 
				}
				return this.siteHost + path;
			},
			//统计访问量
			countView(){
				this.sendRequest({
					url : "count_view",
					data : {id : this.product.count.id},
					method : "get",
 					success:function (res) { 
					}
				}); 
			},
			//规格弹窗开关
			toggleSpec() {
				if(this.specClass === 'show'){
					this.specClass = 'hide';
					setTimeout(() => {
						this.specClass = 'none';
					}, 250);
				}else if(this.specClass === 'none'){
					this.specClass = 'show';
				}
			},
			//选择规格
			selectSpec(index, spec,item){ 
				this.$set(this.specSelectedMap, item.name, spec); 
				//存储已选择
				/**
				 * 修复选择规格存储错误
				 * 将这几行代码替换即可
				 * 选择的规格存放在specSelected中
				 */ 
 				this.specSelected = []; 
				for(var key in this.specSelectedMap){
 					this.specSelected.push(this.specSelectedMap[key]); 
				} 
				this.product.productAttrList.forEach(item=>{
					if(item.attributes==JSON.stringify(this.specSelected)){
						this.specInfo=item;
					}
				}) 
 			},
			//分享
			share(){
				this.$refs.share.toggleMask();	
			},
			//收藏
			toCollect(){
				let _this=this;
				_this.sendRequest({
					url : "collect_save",
					data : {referid : _this.product.id,refer : "Product"},
					method : "get",
					success:function (res) { 
						if(res.code=='200'){
							_this.product.collected = !_this.product.collected;
						}else{
							_this.$api.msg(res.message);  
						}
					}
				});  
			},
			//加入购物车
			cart(){
				this.buyClass="none";
				let attr_id="";
				if(this.product.productAttrList&&this.product.productAttrList.length>0){
					if(!this.specInfo||!this.specInfo.id){
						this.toggleSpec();//显示选择规格
						return;
 					}
				}
				if(this.specInfo&&this.specInfo.id>0){
					attr_id=this.specInfo.id;
				} 
				//只有开启的时候才调用接口
				if(this.specClass === 'show'){
					addCart(this.product.id,this.num,attr_id,JSON.stringify(this.specSelected),this);
				} 
				this.toggleSpec();
				//重新设置成1
				this.num=1;
 				// uni.navigateTo({
				// 	url: `/pages/order/createOrder`
				// })
			},
			buy(){
				this.buyClass="buy";
				let attr_id="";
				if(this.product.productAttrList&&this.product.productAttrList.length>0){
					if(!this.specInfo||!this.specInfo.id){
						this.toggleSpec();//显示选择规格
						return;
					}
				}
				if(this.specInfo&&this.specInfo.id>0){
					attr_id=this.specInfo.id;
				}  
 				//只有开启的时候才调用接口
				if(this.specClass === 'show'){
					addOrder(this.product.id,this.num,attr_id,JSON.stringify(this.specSelected),this);
				} 
				this.toggleSpec();
				//重新设置成1
				this.num=1; 
			},
			//数量改变
			numberChange(e){
 				this.num=e.number;
			},
			stopPrevent(){}
		},

	}
	//添加购物车
	function addCart(referid,num,attr_id,remark,obj){
		let _this=obj;
		let data={
			referid:referid,
			num:num,
			attr_id:attr_id,
			remark:remark,
		}
		_this.sendRequest({
			url : 'save_cart',
			data : data,
			method : "post",
			success:function (res) {
				if(res.code=='200'){
  					_this.$api.msg(`加入购物车成功`);  
				}else{
					_this.$api.msg(res.message);  
				}
			}
		}); 
	}
	//进入下单
	function addOrder(referid,num,attr_id,remark,obj){
		let _this=obj;
		let goodsData = [];
		goodsData.push({
			referid:referid,
			refer:"Product",
			num:num,
			attr_id:attr_id,
			remark:remark,
		});
 		_this.sendRequest({
			url : 'create_order',
			data : {goodsData:goodsData},
			method : "post",
			success:function (res) {
				if(res.code=='200'){
					uni.navigateTo({
						url: `/pages/order/createOrder?orderNo=${res.data.orderNo}`
					})
				}else{
					_this.$api.msg(res.message);
				}
			}
		}); 
	}
</script>

<style lang='scss'>
	page{
		background: $page-color-base;
		padding-bottom: 160upx;
	}
	.icon-you{
		font-size: $font-base + 2upx;
		color: #888;
	}
	.carousel {
		height: 722upx;
		position:relative;
		swiper{
			height: 100%;
		}
		.image-wrapper{
			width: 100%;
			height: 100%;
		}
		.swiper-item {
			display: flex;
			justify-content: center;
			align-content: center;
			height: 750upx;
			overflow: hidden;
			image {
				width: 100%;
				height: 100%;
			}
		}
		
	}
	
	/* 标题简介 */
	.introduce-section{
		background: #fff;
		padding: 20upx 30upx;
		
		.title{
			font-size: 32upx;
			color: $font-color-dark;
			height: 50upx;
			line-height: 50upx;
		}
		.price-box{
			display:flex;
			align-items:baseline;
			height: 64upx;
			padding: 10upx 0;
			font-size: 26upx;
			color:$uni-color-primary;
		}
		.price{
			font-size: $font-lg + 2upx;
		}
		.m-price{
			margin:0 12upx;
			color: $font-color-light;
			text-decoration: line-through;
		}
		.coupon-tip{
			align-items: center;
			padding: 4upx 10upx;
			background: $uni-color-primary;
			font-size: $font-sm;
			color: #fff;
			border-radius: 6upx;
			line-height: 1;
			transform: translateY(-4upx); 
		}
		.bot-row{
			display:flex;
			align-items:center;
			height: 50upx;
			font-size: $font-sm;
			color: $font-color-light;
			text{
				flex: 1;
			}
		}
	}
	/* 分享 */
	.share-section{
		display:flex;
		align-items:center;
		color: $font-color-base;
		background: linear-gradient(left, #fdf5f6, #fbebf6);
		padding: 12upx 30upx;
		.share-icon{
			display:flex;
			align-items:center;
			width: 70upx;
			height: 30upx;
			line-height: 1;
			border: 1px solid $uni-color-primary;
			border-radius: 4upx;
			position:relative;
			overflow: hidden;
			font-size: 22upx;
			color: $uni-color-primary;
			&:after{
				content: '';
				width: 50upx;
				height: 50upx;
				border-radius: 50%;
				left: -20upx;
				top: -12upx;
				position:absolute;
				background: $uni-color-primary;
			}
		}
		.icon-xingxing{
			position:relative;
			z-index: 1;
			font-size: 24upx;
			margin-left: 2upx;
			margin-right: 10upx;
			color: #fff;
			line-height: 1;
		}
		.tit{
			font-size: $font-base;
			margin-left:10upx;
		}
		.icon-bangzhu1{
			padding: 10upx;
			font-size: 30upx;
			line-height: 1;
		}
		.share-btn{
			flex: 1;
			text-align:right;
			font-size: $font-sm;
			color: $uni-color-primary;
		}
		.icon-you{
			font-size: $font-sm;
			margin-left: 4upx;
			color: $uni-color-primary;
		}
	}
	
	.c-list{
		font-size: $font-sm + 2upx;
		color: $font-color-base;
		background: #fff;
		.c-row{
			display:flex;
			align-items:center;
			padding: 20upx 30upx;
			position:relative;
		}
		.tit{
			width: 140upx;
		}
		.con{
			flex: 1;
			color: $font-color-dark;
			.selected-text{
				margin-right: 10upx;
			}
		}
		.bz-list{
			height: 40upx;
			font-size: $font-sm+2upx;
			color: $font-color-dark;
			text{
				display: inline-block;
				margin-right: 30upx;
			}
		}
		.con-list{
			flex: 1;
			display:flex;
			flex-direction: column;
			color: $font-color-dark;
			line-height: 40upx;
		}
		.red{
			color: $uni-color-primary;
		}
	}
	
	/* 评价 */
	.eva-section{
		display: flex;
		flex-direction: column;
		padding: 20upx 30upx;
		background: #fff;
		margin-top: 16upx;
		.e-header{
			display: flex;
			align-items: center;
			height: 70upx;
			font-size: $font-sm + 2upx;
			color: $font-color-light;
			.tit{
				font-size: $font-base + 2upx;
				color: $font-color-dark;
				margin-right: 4upx;
			}
			.tip{
				flex: 1;
				text-align: right;
			}
			.icon-you{
				margin-left: 10upx;
			}
		}
	}
	.eva-box{
		display: flex;
		padding: 20upx 0;
		.portrait{
			flex-shrink: 0;
			width: 80upx;
			height: 80upx;
			border-radius: 100px;
		}
		.right{
			flex: 1;
			display: flex;
			flex-direction: column;
			font-size: $font-base;
			color: $font-color-base;
			padding-left: 26upx;
			.con{
				font-size: $font-base;
				color: $font-color-dark;
				padding: 20upx 0;
			}
			.bot{
				display: flex;
				justify-content: space-between;
				font-size: $font-sm;
				color:$font-color-light;
			}
		}
	}
	/*  详情 */
	.detail-desc{
		background: #fff;
		margin-top: 16upx;
		.d-header{
			display: flex;
			justify-content: center;
			align-items: center;
			height: 80upx;
			font-size: $font-base + 2upx;
			color: $font-color-dark;
			position: relative;
				
			text{
				padding: 0 20upx;
				background: #fff;
				position: relative;
				z-index: 1;
			}
			&:after{
				position: absolute;
				left: 50%;
				top: 50%;
				transform: translateX(-50%);
				width: 300upx;
				height: 0;
				content: '';
				border-bottom: 1px solid #ccc; 
			}
		}
	}
	
	/* 规格选择弹窗 */
	.attr-content{
		padding: 10upx 30upx;
		.a-t{
			display: flex;
			image{
				width: 170upx;
				height: 170upx;
				flex-shrink: 0;
				margin-top: -40upx;
				border-radius: 8upx;;
			}
			.right{
				display: flex;
				flex-direction: column;
				padding-left: 24upx;
				font-size: $font-sm + 2upx;
				color: $font-color-base;
				line-height: 42upx;
				.price{
					font-size: $font-lg;
					color: $uni-color-primary;
					margin-bottom: 10upx;
				}
				.selected-text{
					margin-right: 10upx;
				}
			}
		}
		.attr-list{
			display: flex;
			flex-direction: column;
			font-size: $font-base + 2upx;
			color: $font-color-base;
			padding-top: 30upx;
			padding-left: 10upx;
		}
		.selectCount {
			.row {
				padding:10upx;
				margin: 20upx 0;
				display: flex;
 				justify-content: space-between;
				.left {
 					color: #606266;
					font-size: $font-base + 2upx;
 				}
				.right {
					color: #999; 
 				}
			}
		}
		.item-list{
			padding: 20upx 0 0;
			display: flex;
			flex-wrap: wrap;
			text{
				display: flex;
				align-items: center;
				justify-content: center;
				background: #eee;
				margin-right: 20upx;
				margin-bottom: 20upx;
				border-radius: 100upx;
				min-width: 60upx;
				height: 60upx;
				padding: 0 20upx;
				font-size: $font-base;
				color: $font-color-dark;
			}
			.selected{
				background: #fbebee;
				color: $uni-color-primary;
			}
		}
	}
	
	/* 弹出层选择数量 */
	.choiceNum {
		position: relative;
		left: 0px!important;
  		display: flex;
		justify-content: space-between;
		align-items: center; 
 		.text {
			font-size: 30upx;
		}
		/* .number {
			display: flex;
			justify-content: center;
			align-items: center;
			.input {
				width: 80upx;
				margin: 0 10upx;
				background-color: #f3f3f3;
				display: flex;
				justify-content: center;
				align-items: center;
				text-align: center;
				input {
					width: 80upx;
					display: flex;
					justify-content: center;
					align-items: center;
					text-align: center;
					font-size: 26upx;
				}
			}
	
			.sub,
			.add {
				width: 60upx;
				background-color: #ece4e6;
				border-radius: 5upx;
				.icon {
					font-size: 30upx;
					width: 60upx;
					display: flex;
					justify-content: center;
					align-items: center;
				}
			}
		} */
	}
	
	/*  弹出层 */
	.popup {
		position: fixed;
		left: 0;
		top: 0;
		right: 0;
		bottom: 0;
		z-index: 99;
		
		&.show {
			display: block;
			.mask{
				animation: showPopup 0.2s linear both;
			}
			.layer {
				animation: showLayer 0.2s linear both;
			}
		}
		&.hide {
			.mask{
				animation: hidePopup 0.2s linear both;
			}
			.layer {
				animation: hideLayer 0.2s linear both;
			}
		}
		&.none {
			display: none;
		}
		.mask{
			position: fixed;
			top: 0;
			width: 100%;
			height: 100%;
			z-index: 1;
			background-color: rgba(0, 0, 0, 0.4);
		}
		.layer {
			position: fixed;
			z-index: 99;
			bottom: 0;
			width: 100%;
			min-height: 40vh;
			border-radius: 10upx 10upx 0 0;
			background-color: #fff;
			.btn{
				height: 66upx;
				line-height: 66upx;
				border-radius: 100upx;
				background: $uni-color-primary;
				font-size: $font-base + 2upx;
				color: #fff;
				margin: 30upx auto 20upx;
			}
		}
		@keyframes showPopup {
			0% {
				opacity: 0;
			}
			100% {
				opacity: 1;
			}
		}
		@keyframes hidePopup {
			0% {
				opacity: 1;
			}
			100% {
				opacity: 0;
			}
		}
		@keyframes showLayer {
			0% {
				transform: translateY(120%);
			}
			100% {
				transform: translateY(0%);
			}
		}
		@keyframes hideLayer {
			0% {
				transform: translateY(0);
			}
			100% {
				transform: translateY(120%);
			}
		}
	}
	
	/* 底部操作菜单 */
	.page-bottom{
		position:fixed;
		left: 30upx;
		bottom:30upx;
		z-index: 95;
		display: flex;
		justify-content: center;
		align-items: center;
		width: 690upx;
		height: 100upx;
		background: rgba(255,255,255,.9);
		box-shadow: 0 0 20upx 0 rgba(0,0,0,.5);
		border-radius: 16upx;
		
		.p-b-btn{
			display:flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			font-size: $font-sm;
			color: $font-color-base;
			width: 96upx;
			height: 80upx;
			.yticon{
				font-size: 40upx;
				line-height: 48upx;
				color: $font-color-light;
			}
			&.active, &.active .yticon{
				color: $uni-color-primary;
			}
			.icon-fenxiang2{
				font-size: 42upx;
				transform: translateY(-2upx);
			}
			.icon-shoucang{
				font-size: 46upx;
			}
		}
		.action-btn-group{
			display: flex;
			height: 76upx;
			border-radius: 100px;
			overflow: hidden;
			box-shadow: 0 20upx 40upx -16upx #fa436a;
			box-shadow: 1px 2px 5px rgba(219, 63, 96, 0.4);
			background: linear-gradient(to right, #ffac30,#fa436a,#F56C6C);
			margin-left: 20upx;
			position:relative;
			&:after{
				content: '';
				position:absolute;
				top: 50%;
				right: 50%;
				transform: translateY(-50%);
				height: 28upx;
				width: 0;
				border-right: 1px solid rgba(255,255,255,.5);
			}
			.action-btn{
				display:flex;
				align-items: center;
				justify-content: center;
				width: 180upx;
				height: 100%;
				font-size: $font-base ;
				padding: 0;
				border-radius: 0;
				background: transparent;
			}
		}
	}
	
</style>
